在TiO2/石墨烯量子点修改电极上同时电化学测定尿酸和素
Vu Ngoc Hoang1,2, Dang Thi Ngoc Hoa3, Nguyen Quang Man3
1University of Sciences, Hue University, Vietnam.
Beilstein journal of nanotechnology
|June 26, 2024
概括
这项研究引入了一种由咖啡衍生的石墨烯量子点和二氧化 (TiO2 / GQDs) 制成的新型电极修饰器,用于检测尿酸和素. 复合材料表现出增强的电化学性能,可用于同时分析.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 分析化学 分析化学
背景情况:
- 同时确定生物相关分子,如尿酸和低素,对于诊断至关重要.
- 开发先进的电极材料对于提高电化学传感性能至关重要.
- 对于纳米材料来说,可持续且具有成本效益的合成途径是非常可取的.
研究的目的:
- 为了合成和描述一种新的TiO2/石墨烯量子点 (GQDs) 复合材料.
- 使用TiO2/GQDs复合物作为电极修饰器,用于同时电化学测定尿酸和素.
- 在灵敏度,线性和检测极限方面评估修改过的电极的性能.
主要方法:
- 在现场合成从咖啡粉和过氧复合物的石墨烯量子点 (GQD).
- 使用TiO2/GQDs复合材料制造一个修改的玻璃碳电极 (GCE).
- 使用微分脉冲电量计 (DPV) 的电化学表征和尿酸和素的同时确定.
主要成果:
- 与裸体GCE,GQDs/GCE和TiO2/GCE相比,TiO2/GQDs复合物表现出更高的电化学活性.
- 优化DPV方法显示尿酸和低素的线性校准图表在1.0015.26μM的范围内.
- 已达到低检测极限:尿酸为0.58μM,素为0.68μM.
- 在真实尿样中分析尿酸和素的成功应用,具有良好的恢复率.
结论:
- 开发的TiO2/GQDs复合物为敏感和选择性同时电化学检测提供了一个有前途的平台.
- 利用咖啡粉作为GQDs的前体,为纳米材料合成提供了一种可持续的方法.
- 拟议的电化学方法在生物矩阵中有效量化尿酸和低素.
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